Just to chime in... Usually it looks like lots of Bills fans the night before a road game, because the locals don't go out as much - especially to touristy spots like Broadway in Nashville. But you could just tell this was gonna be overwhelming. They prepared for 150 people at the Nashville Bills Backers Happy Hour event but got over 500 and we drank the place dry. As I walked to the tailgate spot at about 8:30 (1/2 hour after the lots opened) there were hardly any Titans fans even parked yet, but Bills fans were everywhere. Walking into the stadium the Titans fans were still pulling in, 45 minutes before kickoff. There were quite a few empty seats in the clubs and upper decks, but I'd say there were 10,000 to 15,000 Bills fans there.
And we were awesome!